I am looking to sell pretty much any Steam game for BTC. Although, I am new to Bitcoins, I've been trading/selling games for a while. Here's my Seller's reputation thread when dealing with TF2 items and Steam games:

Interested in buying Left 4 Dead 2. (I'd contact you over Steam but apparently it doesn't let people initiate conversations until their accounts have paid games.)

If there is something that will make Bitcoin succeed, it is growth of utility - greater quantity and variety of goods and services offered for BTC. If there is something that will make Bitcoin fail, it is the prevalence of users convinced that BTC is a magic box that will turn them into millionaires, and of the con-artists who have followed them here to devour them.

If there is something that will make Bitcoin succeed, it is growth of utility - greater quantity and variety of goods and services offered for BTC. If there is something that will make Bitcoin fail, it is the prevalence of users convinced that BTC is a magic box that will turn them into millionaires, and of the con-artists who have followed them here to devour them.